Ministry of Mines Notifies 2 Offshore Mineral Blocks Near Great Nicobar for Polymetallic Nodules

UPSC Key: 14 Internal EC Dissents, Tarang Shakti-26 Multinational Exercise, and AI-Driven Semiconductor Supercycle

This Indian Express 'UPSC Key' compilation covers six critical topics: unprecedented internal dissent within the Election Commission (14 objections in 10 months), the second edition of India's largest multinational air exercise Tarang Shakti-26, the Supreme Court's reaffirmation of the Bijoe Emmanuel precedent on Vande Mataram, a new Centre scheme for lithium and nickel processing, the evolution of Yemen's Houthis from a local revivalist movement to a Red Sea power, and the global semiconductor 'supercycle' driven by AI demand. Each story is mapped to UPSC syllabus with previous year questions.

Govt to Launch Lithium-Nickel Scheme; 4 States Identified for Critical Mineral Processing

India is launching a new scheme to process lithium and nickel, critical for EV batteries, with four states identified as hubs. The government has flagged the contradiction of exporting raw minerals while being 100% import-dependent on key minerals, signaling a strategic push toward self-reliance and value addition.

India's E20 Fuel Mandate: 240 Million Legacy Vehicles Face Mileage Loss, Contamination Risks

India's nationwide E20 fuel mandate (20% ethanol blending) effective April 1, 2026, aims to reduce crude oil imports but raises serious concerns for 240 million legacy vehicles (pre-2023). Real-world mileage drops of over 10%, fuel system corrosion, phase separation, and contamination risks (chlorides up to 570 ppm, water up to 13,000 ppm) have sparked legal challenges and demands for consumer protection. This is a high-impact issue linking energy policy, automotive engineering, and consumer rights – a must-know for GS3 and GS2.

SC Applies Section 498A to Live-in Relationships; NOTTO Launches Real-Time Organ Transplant Portal with Aadhaar Pledges

The Indian Express UPSC Key for August 4, 2026, covers multiple crucial topics: the Supreme Court's ruling extending Section 498A cruelty protection to live-in relationships, the launch of a real-time organ transplant portal by NOTTO, the Vikram Sarabhai Medal awarded to Annapurni Subramaniam, India's resilient fertiliser supply amid the Iran war, the science behind Europe's wildfires, and the Ceuta migrant crisis. These topics span Polity, Health, Science, Environment, and International Relations, offering direct material for UPSC Prelims and Mains.

GOBARdhan Scheme Approved with ₹23,731 Cr Outlay to Boost CBG Production Tenfold

Union Cabinet approves GOBARdhan, a National Circular Bioenergy Scheme with ₹23,731 crore outlay for 10 years to increase domestic compressed biogas (CBG) production by nearly 10-fold. The scheme aims to reduce natural gas imports, strengthen energy security, and create a commercially viable waste-to-energy ecosystem through assured offtake, administered pricing, capital subsidies, and pipeline infrastructure.

Doppler Weather Radars: 51st DWR Inaugurated at Sambalpur Under Mission Mausam

India's 51st Doppler Weather Radar was inaugurated in Sambalpur, Odisha, boosting weather forecasting under Mission Mausam. This expansion enhances early warning systems for cyclones, thunderstorms, and heavy rainfall, a core exam topic for disaster management and science-tech.

NALCO Sets Up Pilot Plants in Odisha for Rare Earth Recovery from Fly Ash & Red Mud - Critical Minerals Security

India moves towards self-reliance in rare earth elements (REE) critical for defence, electronics, and renewable energy. NALCO's indigenous pilot plants in Odisha recover REE from fly ash and red mud, reducing import dependence and advancing circular economy goals.

₹840 Cr Indigenous Ocean Research Vessel 'Sagar Manthan' Launched for NCPOR under Deep Ocean Mission

India's indigenous ocean research vessel 'Sagar Manthan', built by GRSE for NCPOR under the Deep Ocean Mission, was launched in Kolkata. The ₹840 crore vessel, expected by early 2028, will significantly boost India's deep-sea exploration capabilities in the Indian Ocean, Southern Ocean, and Antarctic region, supporting blue economy goals.